Faculty, Staff and Student Publications
Publication Date
10-4-2024
Journal
Nature Communications
Abstract
Lung cancer remains the leading cause of cancer mortality, despite declining smoking rates. Previous lung cancer GWAS have identified numerous loci, but separating the genetic risks of lung cancer and smoking behavioral susceptibility remains challenging. Here, we perform multi-ancestry GWAS meta-analyses of lung cancer using the Million Veteran Program cohort (approximately 95% male cases) and a previous study of European-ancestry individuals, jointly comprising 42,102 cases and 181,270 controls, followed by replication in an independent cohort of 19,404 cases and 17,378 controls. We then carry out conditional meta-analyses on cigarettes per day and identify two novel, replicated loci, including the 19p13.11 pleiotropic cancer locus in squamous cell lung carcinoma. Overall, we report twelve novel risk loci for overall lung cancer, lung adenocarcinoma, and squamous cell lung carcinoma, nine of which are externally replicated. Finally, we perform PheWAS on polygenic risk scores for lung cancer, with and without conditioning on smoking. The unconditioned lung cancer polygenic risk score is associated with smoking status in controls, illustrating a reduced predictive utility in non-smokers. Additionally, our polygenic risk score demonstrates smoking-independent pleiotropy of lung cancer risk across neoplasms and metabolic traits.
Keywords
Aged, Female, Humans, Male, Middle Aged, Adenocarcinoma of Lung, Carcinoma, Squamous Cell, Case-Control Studies, Genetic Loci, Genetic Predisposition to Disease, Genome-Wide Association Study, Lung Neoplasms, Polymorphism, Single Nucleotide, Risk Factors, Smoking, White, Ethnicity, Genetic Risk Score
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Bioinformatics Commons, Biomedical Informatics Commons, Medical Sciences Commons, Oncology Commons, Pulmonology Commons, Respiratory Tract Diseases Commons
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Associated Data
PMID: 39366959